Dump-car.



P. L. IRWIN.

. DUMP GAR.

APPLICATION FILED MAY 26. 1911.

v 1 02 941 Patented June 11,1912.

' ATTORN COLUMBIA PLANOGRAPH $0.. WASHINGTON. 0. cl

WITNESSES F. L. IRWIN.

DUMP GAR.

APPLICATION FILED MAY 26, 1911.

2 sums-S11E31: z.

Patented June 11, 1912.

STATES PATENT FRANK L. IRWIN, OF COLUMBUS, OHIO, ASSIGNOR TO THE RALSTONSTEEL CAR COMPANY, OF COLUMBUS, OHIO, A CORPORATION OF OHIO.

DUMP-GAR.

Specification of Letters Patent. Patented J 111 11 1912,

Application filed May 26, 1911.

Serial No. 629,715.

To all whom "it may concern:

Be it known that I, FRANK L. IRWIN, a citizen of the United States,residing at C- lumbus, in the county of Franklin and State of Ohio, haveinvented certain new and useful Improvements in Dump-Cars, of whlch thefollowing is a specification.

My invention relates to improvements in dump cars, and is especiallyadapted to use with a car body mounted on a central longitudinal pivotadapted to swing laterally and discharge the lading through the sidesthereof; to permit the discharge and also to hold the lading in placeduring the transportation, swinging doors or gates are provided, and itis to the matter of operatlng these doors that my invention is directed.

The invention includes a system of toggles or pivotally connected linksunited with the car body and to the underframe and with the swinginggate or displaceable side of the car body in such manner that when thecar body is dumped the gate or door on one side thereof is lifted toclear the car body, thus permitting the discharge of the lading on thatside, while the door on the opposite side of the car body, which side iselevated, remains in position.

The specific construction willbe hereinafter set forth in detail; in thedrawings here to attached and hereby made a part of this specification,Figure 1 is aside view of the car having my improvements thereon; Fig. 2is an end view of the car showing my improvements in place thereon.

Referring to the drawings, 1 is the truck of a car having the support 2for the car body 3 built up thereon, the pivot shaft 1 passing throughthe brackets 5 and 6, thereby providing a pivot about which the car bodymay rotate for the purpose of dumping the lading and returning to normalposition. The underframe of the car has the transverse member 7 thereonto which the links and chains hereinafter described are secured.

The car body comprises the bed or receptacle portion 3, mounted on thepivot 4: in a central longitudinal line, and the gates or sides 8 and 9,which are constructed to swing away from the car body on the side of thecar on which the dumping takes place. Pivotally secured to the end ofthe doors 8 and 9 at 10 and 11 respectively are the arms 12 and 13,which at their inner ends have the common pivot 14; the arm 13 ispivotally associated at 15 with the link 16, which in turn is pivotallyconnected at 17 to the link 18, the latter being in turn pivotallyconnected at 19 to the link 20 which is pivotally mounted at 21 on thetransverse mem: ber 7. This plurality of links is so constructed that itis extensible and contractible, the contracted position being shown inheavy lines in Fig. 2, and the extended position being shown in dottedlines on the right hand side of the center of the car in the samefigure. The arms 12 and 13 at their ends 10 and 11 are pivotally securedto members 22 and 23 (see Fig. 1) mounted on the side of the door orgate member 8, and extending beyond the ends thereof.

The links 16 and 20 are united by the link 18, which always lies at anangle therewith, whether the link construction is folded or closed, oris in extended position, as shown in Fig. 2. Therefore the links areeasily opened from a folded position, and readily closed when in an openposition, through their normal operation, without requiring any manualmanipulation thereof before operation.

Pivotally mounted upon the car body at 24 is a link 25 pivotallyassociated at 26 with the link 27, the latter being pivotally secured at28 to the upper end of the door or gate 8; on the opposite side of thecar body, corresponding parts are shown in the pivot 29, the link 30,the pivot 31, the link 32, and the pivotal connection for the link 32 at33; these parts operate to rotate or swing the door 9 on the pivot 11 asappears in the dotted lines in Fig. 2, when the car body is dumped asthere illustrated.

The car body carries the chain members 34 and 35 which are adapted to beconnected with the corresponding chain members 36 and 37 .carried by theunderframe of the car, in the usual manner.

.on that side of the car.

position shown in the dotted lines generally at, A, the door being heldaloft by the arm 13, the point of connection of which with the body ofthe car has correspondingly moved to the dotted position shown at B. Thelinks 30 and 32, in the downward travel ofthe car body have been broughtinto the dotted position shown in Fig. 2 and indicated by the samenumerals as the parts in their normal position. The effect of the actionof the associated links'and arms is to move and swing the door to theposition shown conventionally in dotted lines at 9 on the lowered sideof the car body, the construction shown generally at G on the oppositeside of the car being extended as shown in dotted lines to accommodatethe links to the elevated position of the body Thus the door ismaintained in elevated position and swung away from the car body by theassociated link members, and the lading is freely discharged. lVhen thecar is righted, the links 30 and 32 are folded on each other to resumethe position shown in heavy lines in Fig. 2, while the arm 13, beingmoved inwardly by the arc-wise movement of its pivot point 14, operatesto draw or return the door to its normal position as shown in heavylines in said Fig. 2.

The construction of the car may admit of some changes, and I do nottherefore desire to be confined to the specific construction shown, butdesire to have the advantage of all variations and construction whichlie within the scope of the appended claims.

What I claim is:

1. In a dump car having doors thereon, an arm pivotally mounted at oneend upon the body of said car and pivotally connected at its other endwith said door, a plurality of links pivotally connected and pivotallymounted at one end upon the body of said car, and at the other endpivotally connected with the door, and a plurality of links pivotallyconnected together and pivotally united at one end to said arm and atthe other end to the underframe of said car.

2. In a dump car, a car body, an arm pivotally mounted thereon, a doorpivotally connected with said arm, a plurality of pivotally connectedlinks associated with said arm and with the underframe of said car tomaintain said door in an elevated position, and a plurality of linkspivotally connected together and mounted pivotally at one of their endsupon the body of said car and pivotally connected at their other endwith said door, whereby said door is lifted away from said car body onthe side of the car which is lowered during the dumping operation.

- 3. In a dump car having a car body and an underframe construction, anarm pivotally mounted at one end upon said car body, a door pivotallyassociated with the other end of said arm, a link construction pivotallyconnected with said underframe and said arm to maintain said door in anelevated position on the side of the car which is lowered during thedumping operation, and a link construction pivotally connected with thecar body and with said door to swing the door when the car body recedestherefrom or approaches thereto.

In testimony whereof I aflix my signature in the presence of twowitnesses.

FRANK L. IRWIN.

Witnesses:

IV. E. WEEKS, B. L. STARNER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

